[USN-2619-1] Linux kernel (Trusty HWE) vulnerability

[John Johansen]

==========================================================================
Ubuntu Security Notice USN-2619-1
May 23, 2015

linux-lts-trusty vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 12.04 LTS

Summary:

The system could be made to crash under certain conditions.

Software Description:
- linux-lts-trusty: Linux hardware enablement kernel from Trusty

Details:

A flaw was discovered in the Linux kernel's IPv4 networking when using TCP
fast open to initiate a connection. An unprivileged local user could
exploit this flaw to cause a denial of service (system crash).

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 12.04 LTS:
  linux-image-3.13.0-53-generic   3.13.0-53.89~precise1
  linux-image-3.13.0-53-generic-lpae  3.13.0-53.89~precise1

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
  http://www.ubuntu.com/usn/usn-2619-1
  CVE-2015-3332

Package Information:
  https://launchpad.net/ubuntu/+source/linux-lts-trusty/3.13.0-53.89~precise1


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